<%@page import="java.io.PrintWriter"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<%
String user=request.getParameter("id");
try{Thread.sleep(50);}catch(Exception e){}
if(user.equals("abc")){
%>
<font color="red" ><strong>User already exists</strong></font>
<%
}else{
%>
<font color="green" ><strong><%out.println(user); %></strong></font>
<%
}
%>